Band tightening means



March 4, 1958 r s. s. KOLODIN 2,825,114

I BAND 'rzcgmumc MEAN$ Filed May 9, i955 \INVENTOR any- ATTORNEY SAMUELS. KOLODIN.

United States Patent@ BAND TIGHTENING' f This invention relates to bandtightening means for compressing bales of newspapers, hay, cotton andthe vlike and alsotuhelesstiresand the like;

This handtighte'ning' means is intendedifor use Where An importantobject of this invention is 'the provis on of band tighteningmean's ofthe characterjde's'crib'e'd whe'r'einlan automatic safety 4 release isproyided iiithe riat'uref of a s'afety'inea'ns for operationlwheritliepre ure di'llten si o n leiierted by said' band tightening apredeter'mined degree; This. .is aniimp V since without it excessivetensionmfaysnapthe l5 d and c use it to fly through the air jivitlivsufiici'e'rit. fol cause serious injury.

In thel present device, 7 manually'setl to various degrees'o'ftensiom-fbrheka'rnple, to, resist from eight. toiten tpounds'tof pressurwhen thisj device is' Inoun'ted upon a tub'el' ess tir'ei airis'intfofduce'dinto the-tire to inflateit inIthe' usual way; When thepressure in the tire builds up to between eightgandten poundsliofpressure, the release will automatically time: som loosenihelband. upontheltirel' There a'r e' tw'o advantagesin this: automatic. feature, hefirst, being that the bandg is released-before excessive pressurebuildslnp and the second. being that release of the teiisiohaiitdthe.automatic'i rfel a'seiin he i matica lly readiesqthe band,fornemovalQf'rorn the tirje Sincevthe present. device, including itsband is" capable of withstanding tension many times in excess oftenlpon'nd s the automatic release of the device upon the bLiild-upQoften pounds of pressure is a safety factor which nullifies anypossibility that the device and its band-maysnap open under excessivepressureinnormaluse, i

This release mechanism is manually adjustable to any degree of tensionor pressure so that a person: operating the de vice maytighten it to theextent of'resisting-vt en poundspf pressure while another personmaychoosei to t ht n t o is only s v n r, ei ht pou f pre ureqwev n no caei ,pqssib e n' p n; oper tin this device to tightenuit,beyondthelimitsimposed' by tho-manufacturer If the manufacturer choose's aglimit icecontinuity so as to; facilitate mounting upon relatively inacce sible'orpar'tlj inaccessible ob'jeet;.- I This device, whenfjmountedonan'obje'ctand in operation; comprises a continuous" memberwhichassumes the outline' shape of the object? For example," whenmounted-on; a'- tub'eless tire; itassumes a" circular shape and whenmounted: on a bale of newspapers it would assur'ne" a' generallyrecjtangular. shape; Iti n'ay' befloosened' to"enlarge itsrange offoperations, without Breaking its g continuit B t it may also bedisconnected at ;its -release mechanism to br 1; such continu'ity. Thsfiis particularly important w 're it is "not possiblfto'jmonnt theban dtightening device upon" an" Obj'QC fIaS lohg as 'hsaid -d'evic'e retainsits on in f Stillfanoth'er object ofv this invention" is the; provisionof a screw type' tightening mechanism; bywhich the band may quicklyanclea'sily be tighteneglluponan' object" to th' extent permitted byth'e aut'omatic release mechanism. Th "deviceoperates'by meansof ascrefwand nut mech= anisin 'andfa'crankhandle which \isiconnected' tothe-screw. Said. crank may bexrnan'ually operatetliinthe same man 'i r ae a k ial rew 'ypei ,l 'mo k The invention ;is illt 1stratedinf thej -act;onipanying'1draw inginwhich:

Fig 1 is a perspective view of a band tightening'devic'ernadeinaccordancewith thefpresentinvention. V I

Fi -2 s 'p a ejwo u he'ra tqma c r e e ce i i 3 is a ansve e"s tio ,,tht r u 1 ni e" ne Figi i p a 124 is l tudinaltse l cathro e and't a oingjmechanism. V I

he'b g te n -dev e; lfli howniii lF -t in u s name- 12 whicli consistsof, a"cha 'el I4 and a strap 16 f. Thechannel isgene'r'a'lly'r lar incross secfti: alviev'v; havinglfouriwalls'gof f thetopiwall is p'r'vided witha, longitudinally extend ng slot 18Qas; shown in? 'gl l'tv.Strap 16 ,functions -as .a bracket. andflitlis welded or otherwise.secured at one. end 16a to the corresponding end 14a of the channelnsaidi st'rapsldis'vproa vided with: a curved portion 16b behind its;end l fiiz to correspond, for example,; to: the. curvature of a;tubeless tire. The strap is also, provided with an upwardlytor laterallyextending portion 16:; which is connected at one end; to thecurved:portion' 16b and its; opposite end to the end 14b of the channelA sorew 20is disposedwithinchannel 14;;longitudinally thereof. One .endztla of said SCI'CWwQ iS :fr'ee;ofscrew threads and; it projects.through an opening in portiontlc of-. bracket 16.. Secured to saidoutwardly projecting end 2012106 the screw-is ancoll'ar22-:a-nd;throughsaidcollar and also throu'gh portion 20w of thezscrew-extends a rod 24:- This; rod is bentintermediate its ends and providedwith a knobr26at its free" enema it- Will be seen: that said rodcomprises the handle by which: the device herein claimed-may:be'actuateds It'will also be understood that said--rbd 24ser'ves tolock the s'cre'wi2lla to the collar 222 Between collar 22'a'nd theendpprtion' 16c of bracket '16 is a thrnst bearing lg. It Willibeiund'er'stood that this hearing tal tes' up the lo'ngitudinalthrnst ofsic'rewjztl when the device herein claimed is in operation and," trans-.mitsf'said' thrustto' the frame 12. j i

A nut 30 is mounted onscrew 20 in engagementgthere with. It, will beobservedthat said-nut is: coniined with irl tlle channel-514 in suchmannerthat itis free o-move longitudinally only and nno tiangular lyiorlaterally. q Con sequently, when crank handle 24 is worked in onedirection, nut 30 is pulled inwardly or leftwardly as viewed in Fig. 5.When the crank handle is turned in the opposite direction, nut 30 isfreed for movement in the 0plongitudinalf's'ec'tionon" thej line- 4-4 of3 posite direction, that is, outwardly or rightwardly as viewed in Fig.5.

If desired, means may be provided to prevent screw 20 from pullingleftwardly out of channel 14, as viewed in Fig. 5. This means maycomprise a pin 32 which extends through end 20:: of screw 20 and awasher 34 between said pin andend portion 160 of bracket 16. This isconventional means for preventing endwise movement of the screw in onedirection, collar 22 and thrust bearing 28 preventing endwise movementin the opposite direction. Furthermore, the use of pin 32 and washer 34insures longitudinal movement of nut 30 in channel 14 when the crankhandle 24 is operated in one direction while collar 22 and thrustbearing 28 insure movement of said nut in the opposite direction whenthe crank handle is operated in the opposite direction- Secured to nut30 by riveting or the like is'one end of a band A which is secured byrivets 36 or anyother suitable fastening means at its opposite end tothe automatic release device 40 herein claimed. Band A is a relativelyshort strip of strong, flexible metal and it serves to attach saidrelease device to the nut of the screw device. A second band B isconnected at one end by means of rivets 42 to the curved portion 16b ofbracket 16 and its opposite end is free to project through the releasedevice 40 in the manner and for the purpose hereinafter described.

Release device 40 comprises a channel 44,1a second channel 46 and aplate 48 and there is a screw 50 which constitutes the operating factorof said device." Band A is secured to the bottom wall of channel 44.-Channel 46 is mounted within channel 44 in transverse relation thereto.Band B is drawn between the bottom walls of channels 46 and 44 andbetween the two side walls of said channel 44. It will be observed inFig.2 that plate 48 is provided with reduced end portions 48a and thesereduced end portions project through slots 52 formed in the side wallsof channel 44. This is shown in Figs. 1 and 3. It will be observed thatthis'arrange'ment. secures plate 48 to the side walls of channel 44 andsaid plate, being disposed between the side walls of channel 46, alsolocks said latter channel in place in channel .44, while leaving it alimited measure of movement as will hereinafter more fully appear.

Plate 48 is provided with a tapped hole ,54 to receive screw 50. Theupper end of said screw may be bent over laterally to form a handleportion. 50a. Channel 46 comprises the pressure member of themechanismand particularly its bottom wall, sometimes described as apressure pad. When screw 50 is turned in one direction relative to plate48, it tends to push the pressure pad or channel 46 against band B andthereby presses said hand against the bottom wall of channel 44.The'band is thereby locked in place in said channel 44. When screw 50 isturned in the opposite direction, it relieves its pressure upon thepressure pad or channel 46, thereby'releasing the grip of said pressurepad or channel46 upon band B,.freeing said band for longitudinalmovement in either direction relative to channel 44.

Handle 50a of screw 50 is a relatively short handle,.just long enough tobe gripped by the fingers of the person operating the device hereinclaimed; It does notprovide excessive leverage. Consequently, when saidhandle'50a is turned manually to tighten screw 50. against the pressurepad or channel 46, only a limited amount orextent of frictionalengagement between said pressure pad or channel 46 and channel 44 011the .one hand andjband B on the other hand isprovided; 13y .wayof,illustration, said handle 50a may be aboutftwo or two and a half incheslong. The average person operating saidhandle is able to tighten *it.inthe normalcourse of use so that it will hold band B tight against a tirepressure of up to eight to ten pounds. When the tire pressure exceedsthat amount, the frictional grip of channels 46 and 44 upon band B willbe overcome and said band will slip longitudinally through the, releasedevice 40 in order to yield to the pressure built up within the tire.

It will be observed that the free end of band B may be withdrawncompletely from release device 40 in order to break the continuity ofthe entire device as shown in Fig. 1. By the same token, said free endof band B may very readily be slipped back into and through said releasedevice.

The foregoingis illustrative of a preferred form of this invention andit will be understood that this preferred form may be modified and otherforms may be provided within the broad spirit of the invention and thebroad scope of the claim.

' I claimi A band tightening device of the character described,comprising. a frame, a screw rotatably mounted in said frame forrotation about its longitudinal axis, stop means providedon said frameto prevent longitudinal movement of said screw relative to said frame,.ahandle connected to said screw to turn it in either direction about itslongitudinal axis, a nut mounted on said frame and on saidfsc'rew, guidemeans on said frame preventing angular movement of said nut aboutthelongitudinal axis of said screw while permitting endwise movement ofsaid nut longitudinally of said screw, a band secured at one end to saidframe and describing a loop and operatively connected at its oppositeend to said nut, whereby said bandmay be looped around an object andtightened upon said object by turning the screw, said frame including achannel and a strap secured at its ends to said channel, said strapbeing constructed and arranged to conform to the general curvature ofthe circumference of a tubeless tire, said screw being disposed Withinsaid channel, longitudinally thereof, said nut being also disposedwithin said channel, said channel having walls constituting the guidemeans which prevent angular movement of the out while permitting endwisemovement thereof said walls being also disposed to confine said nut tothe frame, said band consisting of two'pieces, a clamp havingone end ofone of said two pieces secured thereto, the other end of said one piecebeing secured to the frame, the other piece being secured at one end tothe frame and its opposite end being drawn through said clamp, whereby,when the clamp is clamped upon said opposite end of said other piece,the two pieces of said band function as a single band, said clamp havinga bottom plate, a pressure pad situated above saidbottom plate, and ascrew for pushing said pressure pad in the direction of said bottomplate, the portion of the band which is drawn through said clamp beingdisposed between said bottom plate and said pressure pad, wherebysaidportion of the band is fric tionally gripped between said bottomplate and said pressure pad when said last mentioned screw is turned toforce the pressure pad in the direction of said bottom plate.

References Cited in the file of this patent UNITED STATES PATENTS1,031,813 Nix July 9, 1912 1,917,192 Hueber, July 4, 1933 2,087,328Mitchnick July 20, 1937 2,149,395 Glynn May 7, 1939 2,335,985; YeidaDec. 7, 1943 2,370,766 Austin Mar. 6, 1945 2,503,189 Biba, Jr. Apr. 4,1950 2,541,206 Christophersen Feb. 12, 1951

